Appleton's cyclopædia of drawing, designed as a textbook for the mechanic, architect, engineer, and surveyor (1866)
Worthen, William Ezra, 1819-1897, [from old catalog] ed, Appleton, firm, publishers, New York. (1866. D. Appleton & co.) [from old catalog] · New York, D. Appleton and company · leaf 196
Fig. 252. Fig. 253. Fig. 254. Fig. 255 represents a portion of the elevation of a pulley sufiicient toshow the proportion of the several parts, and -Q.g, 256 a section of the same. Fig. 255. … I 1-^ :^^^ M